Monitor arm



FIG. 1 is a first perspective view of a monitor arm showing our new design;

FIG. 2 is an enlarged view of portion 2 of FIG. 1 ;

FIG. 3 is a second perspective view thereof;

FIG. 4 is a third perspective view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a rear elevation view thereof;

FIG. 8 is a front elevation view thereof;

FIG. 9 is a top plan view thereof;

FIG. 10 is a bottom plan view thereof; and,

FIG. 11 is a perspective view of the thereof, shown in an environement.

The broken lines depict environment and the bounds of the enlargement. The broken lines form no part of the claimed design. 

CLAIM The ornamental design for a monitor arm, as shown and described. 